ISSN0010-437X Kluwer Dordrecht The Netherlands
Volume 118 No. 1, August 1999
Karim Belabas: On the Mean 3-Rank of Quadratic Fields 1-9 Takeshi Tsuji: Poincar6 Duality for Logarithmic Crystalline
Cohomology 11-41 J. Huisman: Real Quotient Singularities and Nonsingular Real
Algebraic Curves in the Boundary of the Moduli Space 43-60 Qing Liu and Dino Lorenzini: Models of Curves and Finite Covers 61-102 L. M. Figueiredo: Serre's Conjecture for Imaginary Quadratic Fields 103-122